1. Experience Gained in Road Safety in Implementing Safer Surfacings
Dr R J Dunlop BE(Hons), PhD, QSO
DRD Consulting Ltd.

2. Outline of Presentation
Road Management
Road Users Demands to Focus on
Surfacing Skid Resistance
Network Response
Conclusions
DRD Consulting Ltd.

3. Road Management Roads are fabric of society
Need to consider the whole corridor
Need to manage safety of corridor users
Risk analysis
Defence against challenges
DRD Consulting Ltd.

4. Road Users Views Road system reliability Comfort and low stress
Safety of the road
Efficiency
Price and level of service
DRD Consulting Ltd.

5. Road User Demands to Focus on
Fitness for purpose
No surprises to the driver
Ensuring balance between mobility and safety
Where appropriate and economic use new technology to assist in road management
DRD Consulting Ltd.

6. Surfacing Skid Resistance
In order to focus on these few points and in particular the “no surprises” environment how does the driver weigh up;
vehicle speed
surface texture
water depth and tyre characteristics
seasonal variations
road geometry
surface contamination
DRD Consulting Ltd.

7. Overcoming Lack of Visible Driver Evidence
Easy way out - erect signs
Lowest common denominator results in non observance
In carrying out safety audits look for discontinuities in the network
DRD Consulting Ltd.

8. Surface Treatment Crash Reduction
DRD Consulting Ltd.

9. Network Response Convince the powers to be
Documented process using data collected and then analyses
Establish investigatory levels for the network
Carry out Cost Benefit analysis on the worst 5%
Submit your proposal
Remember to always ask the question “how will you look if we fail to take action”
DRD Consulting Ltd.

10. Conclusions
No road network operator/owner can ignore the importance of surfacing skid resistance
Always focus on the “no surprises” environment
DRD Consulting Ltd.

11. THANK YOU
R J Dunlop
DRD Consulting Ltd.